If the right testicle is painful, it is recommended to go to the hospital for examination to clarify the possible causes: 1. Testicular inflammation on the right side, which can cause pain in the right testicle, accompanied by an increase in the volume of the right testicle, accompanied by scrotal prolapse or red and swollen scrotal skin, further ultrasound examination of the scrotal area and routine blood tests are needed to exclude the presence of infection. 2. Varicocele, in which the varicose blood vessels fall into the scrotum, can cause swelling and pain in the testicle area, accompanied by the palpable presence of tortuous vascular tissue in the scrotum, which can be relieved after rest. The testicular tumor can cause painful swelling in the testicular area, and at the same time, the tortuous vascular tissue can be clearly felt in the scrotum, which can be relieved after rest. 3.Testicular tumor can cause painful symptoms in the right testicle. Testicular tumor indexology, testicular area ultrasound, CT and other examinations are needed to further rule out the existence of testicular tumor.